Patents Assigned to Nisshin Chemical Co., Ltd.
  • Patent number: 4914140
    Abstract: An acrylic copolymer of ethyl acrylate and methacrylic acid wherein the weight ratio of ethyl acrylate to methacrylic acid is in a range between 75:25 and 95:5, containing therein a residual monomer content of 50 ppm or less, but substantially no surfactants, and which is useful as agents for protecting the skin and manufactured from the following essential components:a. an acrylic copolymer of ethyl acrylate and methacrylic acid wherein the weight ratio of ethyl acrylate to methacrylic acid is in a range between 75:25 and 95:5, containing therein residual monomers in an amount of 50 ppm or less, but substantially no surfactants--approximately 2 to 10%;b. cellulose derivative--approximately 0.2 to 2%; andc. a necessary amount of an aqueous alcohol to make the whole 100%.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: April 3, 1990
    Assignees: Shinonogi and Co., Ltd., Nisshin Chemical Co., Ltd.
    Inventors: Izumi Saitoh, Shigeru Kido, Yoshio Sasaki, Syuichiro Shinohara
  • Patent number: 4874830
    Abstract: An acrylic copolymer of ethyl acrylate and methacrylic acid wherein the weight ratio of ethyl acrylate to methacrylic acid is in a range between 75:25 and 95:5, containing therein a residual monomer content of 50 ppm or less, but substantially no surfactants, and which is useful as agents for protecting the skin and manufactured from the following essential components:a. an acrylic copolymer of ethyl acrylate and methacrylic acid wherein the weight ratio of ethyl acrylate to methacrylic acid is in a range between 75:25 and 95:5, containing therein the residual monomers in an amount of 50 ppm or less, but substantially no surfactants . . . approximately 2 to 10%;b. cellulose derivative . . . approximately 0.2 to 2%; andc. a necessary amount of an aqueous alcohol to make the whole 100%.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: October 17, 1989
    Assignees: Shionogi & Co., Ltd., Nisshin Chemical Co., Ltd.
    Inventors: Izumi Saitoh, Shigeru Kido, Yoshio Sasaki, Syuichiro Shinohara
  • Patent number: 4829082
    Abstract: This invention relates to pharmaceutical compositions for the treatment of skin diseases which comprises as an active ingredient vitamin A esters of .alpha.-tocopherol.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: May 9, 1989
    Assignee: Nisshin Chemicals Co., Ltd.
    Inventors: Hiroshi Shinkai, Takao Kishiye
  • Patent number: 4730049
    Abstract: An improved process for the preparation of 5-(2-chlorobenzyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine and acid addition salts thereof, which are useful as a medicine. This process comprises effecting reaction between 4,5,6,7-tetrahydrothieno[3,2-c]pyridine and 2-chlorobenzyl halide in the presence of a phase transfer catalyst.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: March 8, 1988
    Assignees: Nisshin Flour Milling Co., Ltd., Nisshin Chemicals Co., Ltd.
    Inventor: Toshio Suguro
  • Patent number: 4723045
    Abstract: New processes for preparing cholesta-1,5,7-trien-3-ol which is a key intermediate in the synthesis of 1.alpha.-hydroxyvitamin D.sub.3. The processes utilize the steps of reacting cholesta-1,4,6-trien-3-one with isopropenyl acetate in the presence of an acid catalyst followed by reduction of the resultant cholesta-1,3,5,7-tetraen-3-yl-acetate.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: February 2, 1988
    Assignees: Nisshin Flour Milling Co., Ltd., Nisshin Chemicals Co., Ltd.
    Inventor: Yoji Tachibana
  • Patent number: 4666919
    Abstract: A stabilized pharmaceutical composition containing 4-(3-tert.-butylamino-2-hydroxy)propoxy-2-methylisocarbostyril or an acid addition salt thereof as the active ingredient is now provided, in which the active ingredient compound is stabilized by addition of at least one of stabilizing agents selected from magnesium silicate, magnesium oxide, hydrotalcite and sodium hydrogen carbonate.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: May 19, 1987
    Assignees: Nisshin Flour Milling Co., Ltd., Nisshin Chemicals Co., Ltd.
    Inventors: Masao Ueno, Hironori Kubota
  • Patent number: 4621154
    Abstract: An improved process for preparing 4-(4-biphenylyl)-4-oxo-butanoic acid which is useful as anti-inflammatory and analgesic agents. The process comprises reacting biphenyl with succinic anhydride in chlorobenzene in the presence of anhydrous aluminum chloride. No 4-(4-chlorophenyl)-4-oxo-butanoic acid is produced as by-product.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: November 4, 1986
    Assignees: Nisshin Flour Milling Co., Ltd., Nisshin Chemicals Co., Ltd.
    Inventor: Haruhiko Kikuchi
  • Patent number: 4612187
    Abstract: A soft capsule containing as active ingredient .gamma.-oryzanol alone or oryzanol in combination with riboflavin butyrate is described. The shelf life of this composition is increased without precipitation of the ingredients thereof.
    Type: Grant
    Filed: November 6, 1984
    Date of Patent: September 16, 1986
    Assignee: Nisshin Chemicals Co., Ltd.
    Inventors: Takeo Iijima, Hiroyuki Sano
  • Patent number: 4610828
    Abstract: L-carnitine and salts thereof are resolved from DL-carnitine by the use as a resolving agent of dibenzoyl-L(+)tartaric acid. L-carnitine is known as vitamin B.sub.T and is useful as a medicine.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: September 9, 1986
    Assignees: Nisshin Flour Milling Co., Ltd., Nisshin Chemicals Co., Ltd.
    Inventor: Haruhiko Kikuchi